EP0030950B1 - Circuit d'alimentation de puissance - Google Patents
Circuit d'alimentation de puissance Download PDFInfo
- Publication number
- EP0030950B1 EP0030950B1 EP80901171A EP80901171A EP0030950B1 EP 0030950 B1 EP0030950 B1 EP 0030950B1 EP 80901171 A EP80901171 A EP 80901171A EP 80901171 A EP80901171 A EP 80901171A EP 0030950 B1 EP0030950 B1 EP 0030950B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- respect
- reference voltage
- video signals
- supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/27—Picture reproducers using cathode ray tubes with variable depth of penetration of electron beam into the luminescent layer, e.g. penetrons
Abstract
Claims (1)
- Circuit d'alimentation de puissance destiné à appliquer une tension élevée à variations rapides à un tube à rayons cathodiques de type à pénétrons (1) pour système de visualisation en couleurs, comprenant un premier générateur de tension (2) destiné à fournir à l'anode une tension élevée constante, un second générateur de tension (4) destiné à engendrer une tension dont l'amplitude varie avec les différentes couleurs, tension qui après avoir été modulée par les signaux vidéo à visualiser, est appliquée à la cathode (5) du tube (1), une première unité de transformation (13) comportant des premiers moyens de transformation (20, 23, 24) pour convertir les signaux vidéo définis par rapport à une première tension de référence en signaux vidéo définis par rapport à la tension dont l'amplitude varie avec les différentes couleurs, et tenant lieu de seconde tension de référence; une seconde unité de transformation (17) pour convertir une tension d'alimentation définie par rapport à la première tension de référence en une tension d'alimentation définie par rapport à la seconde tension de référence; et une unité d'alimentation (19) destinée à dériver de la tension d'alimentation définie par rapport à la seconde tension de référence les tensions d'alimentation nécessaires pour traiter les signaux vidéo définis par rapport à la seconde tension de référence, et pour afficher lesdits signaux vidéo sur le tube à rayons cathodiques, caractérisé en ce que la première unité de transformation (13) comprend des seconds moyens de transformation (26, 27, 28, 30) pour convertir une tension de forme d'onde rectangulaire, qui détermine le début et la fin des affichages d'une certaine couleur, et qui est définie par rapport à la première tension de référence, en une tension de forme d'onde rectangulaire définie par rapport à la seconde tension de référence, et comprend en outre un commutateur (29) pour acheminer vers la cathode (5) soit la seconde tension de référence, soit, selon cette dernière tension de forme d'onde rectangulaire, les signaux vidéo définis par rapport à la seconde tension de référence.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7904989A NL7904989A (nl) | 1979-06-27 | 1979-06-27 | Spanningsverzorgingsschakeling. |
NL7904989 | 1979-06-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0030950A1 EP0030950A1 (fr) | 1981-07-01 |
EP0030950B1 true EP0030950B1 (fr) | 1984-05-09 |
Family
ID=19833424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80901171A Expired EP0030950B1 (fr) | 1979-06-27 | 1981-01-26 | Circuit d'alimentation de puissance |
Country Status (9)
Country | Link |
---|---|
US (1) | US4390896A (fr) |
EP (1) | EP0030950B1 (fr) |
JP (1) | JPS56500732A (fr) |
BE (1) | BE883954A (fr) |
CA (1) | CA1136770A (fr) |
DE (1) | DE3067742D1 (fr) |
IT (1) | IT1128117B (fr) |
NL (1) | NL7904989A (fr) |
WO (1) | WO1981000182A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5973836A (ja) * | 1982-10-19 | 1984-04-26 | Sony Corp | 電流依存型カラ−陰極線管 |
US7802592B2 (en) * | 2006-04-18 | 2010-09-28 | Fisher Controls International, Llc | Fluid pressure reduction devices |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1283308B (de) * | 1966-03-25 | 1968-11-21 | Hellige & Co Gmbh F | Netzteil fuer elektrische Verstaerker mit erdfreiem Betrieb |
DE2037982B1 (de) * | 1970-07-31 | 1971-08-05 | Licentia | Schaltungsanordnung zur Erzeugung einer veränderbaren Elektronenbeschleum gungs Hochspannung in einer Farbbildröhre |
US3720781A (en) * | 1971-11-10 | 1973-03-13 | United Aircraft Corp | High voltage slewing of penetration tube gun |
-
1979
- 1979-06-27 NL NL7904989A patent/NL7904989A/nl not_active Application Discontinuation
-
1980
- 1980-06-10 CA CA000353739A patent/CA1136770A/fr not_active Expired
- 1980-06-10 JP JP50143480A patent/JPS56500732A/ja active Pending
- 1980-06-10 WO PCT/NL1980/000021 patent/WO1981000182A1/fr active IP Right Grant
- 1980-06-10 DE DE8080901171T patent/DE3067742D1/de not_active Expired
- 1980-06-10 US US06/243,963 patent/US4390896A/en not_active Expired - Fee Related
- 1980-06-23 BE BE0/201134A patent/BE883954A/fr not_active IP Right Cessation
- 1980-06-26 IT IT8049079A patent/IT1128117B/it active
-
1981
- 1981-01-26 EP EP80901171A patent/EP0030950B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3067742D1 (en) | 1984-06-14 |
CA1136770A (fr) | 1982-11-30 |
JPS56500732A (fr) | 1981-05-28 |
WO1981000182A1 (fr) | 1981-01-22 |
EP0030950A1 (fr) | 1981-07-01 |
NL7904989A (nl) | 1980-12-30 |
US4390896A (en) | 1983-06-28 |
IT8049079A0 (it) | 1980-06-26 |
BE883954A (fr) | 1980-10-16 |
IT1128117B (it) | 1986-05-28 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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NLT1 | Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1 |
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